Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1982-09-07
1985-12-31
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
356 38, G01N 2163
Patent
active
045617775
ABSTRACT:
Apparatus and method for near real-time in-situ monitoring of particulates and vapors contained in fluids. Initial filtration of a known volume of the fluid sample is combined with laser-induced dielectric breakdown spectroscopy of the filter employed to obtain qualitative and quantitative information with high sensitivity. Application of the invention to monitoring of beryllium, beryllium oxide, or other beryllium-alloy dusts is demonstrated. Significant shortening of analysis time is achieved from those of the usual chemical techniques of analysis.
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Cremers David A.
Radziemski Leon J.
Evans F. L.
Freund Samuel M.
Gaetjens Paul D.
Hightower Judson R.
The United States of America as represented by the United States
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